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Lease financing (Details Narrative) $ in Thousands	6 Months Ended
	Jun. 30, 2021 USD ($)
Star Bovarius, Star Subaru, Star Capoeira, Star Carioca, Star Lambada and Star Macarena [Member]
Debt Instrument [Line Items]
Delivery Date	March 16, 2021
Star Athena [Member]
Debt Instrument [Line Items]
Delivery Date	May 19, 2021
Eneti Acquisition Vessels [Member]
Debt Instrument [Line Items]
Finance Lease, Liability	$ 96,101
Finance lease payments per vessel	$ 500

X

- Definition

The date of the vessel delivery to the Company.

+ References

No definition available.

+ Details

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Namespace Prefix:	SBLK_
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Balance Type:	na
Period Type:	duration

X

- Definition

The amount of cash outflow per vessel paid by the Company to the lessors as security for its obligations.

+ References

No definition available.

+ Details

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Namespace Prefix:	SBLK_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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X

- Definition

Present value of lessee's discounted obligation for lease payments from finance lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977

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Balance Type:	credit
Period Type:	instant

X

- Details

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Namespace Prefix:
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X

- Details

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Namespace Prefix:
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Balance Type:
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X

- Details

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